CVE-2022-44808
Published: 22 November 2022
Summary
CVE-2022-44808 is a critical-severity OS Command Injection (CWE-78) vulnerability in Dlink Dir-823G Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 7.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A command injection vulnerability tracked as CVE-2022-44808 affects D-Link DIR-823G routers running firmware version 1.02B03. The flaw resides in the HNAP1 API handler, where an untrusted command is passed to the system function before the API can validate or process the request, enabling arbitrary operating-system command execution. The issue is classified under CWE-78 and carries a CVSS 3.1 score of 9.8.
An unauthenticated attacker with network access can exploit the vulnerability by sending specially crafted HNAP1 requests. Successful exploitation grants the attacker the ability to execute arbitrary commands on the device, resulting in full compromise of confidentiality, integrity, and availability without requiring user interaction or credentials.
Public references include proof-of-concept code on GitHub and D-Link’s security bulletin page, which practitioners should consult for any official firmware updates or mitigation guidance.
EPSS for the CVE rose from lower values to a peak of 0.1978 on 2025-12-11 before receding to the current score of 0.0870, indicating a period of increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-47739
Vulnerability details
A command injection vulnerability has been found on D-Link DIR-823G devices with firmware version 1.02B03 that allows an attacker to execute arbitrary operating system commands through well-designed /HNAP1 requests. Before the HNAP API function can process the request, the system…
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function executes an untrusted command that triggers the vulnerability.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.